Is there a way to password protect or encrypt emails triggered by Eloqua Insight reporting agents?

Summary:

My internal customers want Eloqua Form Submission Data delivered to their inboxes. My Security team does not. I'd like to explore whether encrypting the Form Submission Data agent or making the file password protected would satisfy both parties, but I won't suggest it until I know it can be done when the report email is triggered from Eloqua Insight.

I haven't gotten anywhere in my own testing.

Does anyone have experience successfully implementing a password protected file or encrypted email triggered by an Eloqua Insight reporting agent?

It looks like password protecting is a requested feature in the Idea Lab: